brake master

[raabbiitt]

i have front discs , rear drums, stock power master with booster deleted, no proportioner valve, fronts teed together rears same.

i would like more rear brake, bias adjusters NOT allowed. did a search and found talk about corvette manual master and maybe a dodge master?

someone said there are dual reservoir masters with 7/8 and 1" bore, but im not clear if that is for rear calipers instead of drums.

thanks